For D1V33, it is less susceptible to oscillation and thus no shielding is required if electrolytic Bi Polar capacitor is used. Personally I like Nichicon BP Electrolytic capacitors as they are cheap and good.
The original D1 use 18 bit data mode from CS8414 to SM5842. Thus it is not optimise for 24bit data signal.
I have done an upgrade so that the D1V3 and D1V33 can use 24 bit data file with better results. See link below:
http://www.fetaudio.com/?p=576
I have done an upgrade so that the D1V3 and D1V33 can use 24 bit data file with better results. See link below:
http://www.fetaudio.com/?p=576
Some update in fetaudio regarding using 96k Fs and AD1862 DAC in D1 platform.
http://www.fetaudio.com/
http://www.fetaudio.com/
Hi,
I've just started to build your DAC 😎
Is there any build thread ?
Thanks for your nice packaging
I've just started to build your DAC 😎
Is there any build thread ?
Thanks for your nice packaging
I believe everything is in below links:
http://www.fetaudio.com/?p=112
http://www.fetaudio.com/?p=101
http://www.fetaudio.com/?p=112
http://www.fetaudio.com/?p=101
Hi Spencer,
I am wondering if it would be possible to use an external clock on the D1V33. I read a post (number 4 in this thread) but it was the D1V3. Is it still possible on the D1V33 ?
Actually I'd like to have a masterclock for both the DAC and my CD drive.
Thanks for your halp.
PS : BTW my dac is working, your assembly manual was most helpful. I doubted to be able to mount it but it went smoothly following the instructions 🙂
I am wondering if it would be possible to use an external clock on the D1V33. I read a post (number 4 in this thread) but it was the D1V3. Is it still possible on the D1V33 ?
Actually I'd like to have a masterclock for both the DAC and my CD drive.
Thanks for your halp.
PS : BTW my dac is working, your assembly manual was most helpful. I doubted to be able to mount it but it went smoothly following the instructions 🙂
See here : FET Audio » D1V33 with external super clock 256Fs
D1V33 use master clock at 256 Fs. Fs maximum 48kHz for SM5842 and 96kHz for SM5847.
D1V33 use master clock at 256 Fs. Fs maximum 48kHz for SM5842 and 96kHz for SM5847.
Recently I tried RIFA PEG124 100u/100V on the 4 output capacitors and the sonic performance is very good. Silmic II has been used and it is also better than Muse BP and the sound is a bit silky and soft. PEG124 give the highest dynamics in all frequency and is a very good capacitor for signal coupling in this DAC. Choose the capacitor that suit your sonic taste preference.
Hi Spencer,
I have some LM140LAH lying around and am considering to use them in lieu of the LT1117 since they may be quieter. Is this feasible? 😀
I have some LM140LAH lying around and am considering to use them in lieu of the LT1117 since they may be quieter. Is this feasible? 😀
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Hi Housing,
I think if the part is 5V and you manage to solder the input, ground and output to the pad of LT1117 correctly, it should work but I am doubtful how much is the improvement.
Regards, Spencer
I think if the part is 5V and you manage to solder the input, ground and output to the pad of LT1117 correctly, it should work but I am doubtful how much is the improvement.
Regards, Spencer
Just a bit update on the Rifa PEG124, it is a bit bright to me for mid and high. Have tried Jensen 40u/450V normal audio E-cap and the result is very good. Smooth mid and high with soft deep bass (mellow) plus the signature sound of Jensen cap. Expensive but worth a try for those who love tube sound. I am going to summarize some observation to the D1V33 for capacitors and IV resistor in my blog soon.
I have some bennic 10uF caps on their way to me. I have tried these before in a phonostage with very good results. It will be interesting to try them in this DAC as well.
Spencer.. so if I change the jumpers on the DIR9001, it will accept 16 and 24 bit data? What about the sampling rate - will it take 96k?
sorry for the newbie question....
Fran
Spencer.. so if I change the jumpers on the DIR9001, it will accept 16 and 24 bit data? What about the sampling rate - will it take 96k?
sorry for the newbie question....
Fran
Rifa PEG is cheap from RS Component.
No 96k for this DAC yet. Reason is SM5842 and PCM63 limitations.
As I said before SM5847 can be up to 96k. Problem is I do not like PCM1704 sound which can go up to 96k and 24 bit. The bass is just too shy and thus too bright sound. Need to experiment parallel PCM1704 later.
Another way is to use SRC chip after DIR9001 to accept 96k and output fixed Fs 48k to SM5842 but I also do not like the metallic and artificial sound from SRC chip.
So still finding other good solutions!
No 96k for this DAC yet. Reason is SM5842 and PCM63 limitations.
As I said before SM5847 can be up to 96k. Problem is I do not like PCM1704 sound which can go up to 96k and 24 bit. The bass is just too shy and thus too bright sound. Need to experiment parallel PCM1704 later.
Another way is to use SRC chip after DIR9001 to accept 96k and output fixed Fs 48k to SM5842 but I also do not like the metallic and artificial sound from SRC chip.
So still finding other good solutions!
Well, its not a problem as I have very very little at 24/96 anyway. But if I read what you're saying correctly, then we are better setting the DIR9001 to 24 bit anyway because it gives better s/n ratio? - and this will still work ok with 16bit data?
Fran
Fran
Hi Spencer,
I would like to put a pot at the output for volume control. What value do you suggest?
🙂
I would like to put a pot at the output for volume control. What value do you suggest?
🙂
R141 = 10k to 50k
R8 = 50k to 100k
Details: http://www.fetaudio.com/wp-content/uploads/2009/06/D1V33_BOM.pdf
R8 = 50k to 100k
Details: http://www.fetaudio.com/wp-content/uploads/2009/06/D1V33_BOM.pdf